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US-11033997-B1 · Jun 15, 2021 · US
Solid-propellant gas generator assemblies and methods
US11512645B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11512645-B2 |
| Application number | US-202016811673-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 6, 2020 |
| Priority date | Mar 6, 2020 |
| Publication date | Nov 29, 2022 |
| Grant date | Nov 29, 2022 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
A solid-propellant gas generator assembly may comprise a bulkhead having an orifice disposed in a housing. The bulkhead may be disposed between a first end and a second end of the housing. The bulkhead and the first end may define a propellant cavity. The bulkhead and the second end may define a pressure chamber. A fast burning solid-propellant may be disposed in the propellant cavity. The solid-propellant gas generator assembly may be configured to replace a slow burning solid-propellant gas generator system in a solid-propellent gas generator system.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of retro-fitting a solid-propellant gas generator system, the method comprising: removing a first cartridge assembly from the solid-propellant gas generator system, the first cartridge assembly including a first solid-propellant; and coupling a second cartridge assembly to the solid-propellant gas generator system, the second cartridge assembly including a second solid-propellant configured to burn faster than the first solid-propellant, wherein: the first cartridge assembly includes a first housing defining a first cavity extending from a first end of the first housing to a second end of the first housing, the first solid-propellant is disposed in the first cavity of the first housing, a first flow of gas from burning the first solid-propellant is configured to flow unobstructed in the first cavity; the second cartridge assembly further comprises a bulkhead having an orifice disposed in a second housing of the second cartridge assembly, the second cartridge assembly further comprises a propellant cavity defined between a first end of the second housing and the bulkhead and a pressure chamber defined between the bulkhead and a second end of the second housing, the orifice of the second cartridge assembly is configured to meter a flow of gas into the pressure chamber of the second cartridge assembly, and a pressure in the propellant cavity of the second cartridge assembly and the pressure chamber of the second cartridge assembly equalize over time in response to burning the second solid-propellant. 2. The method of claim 1 , wherein the first solid-propellant comprises ammonium nitrate propellant, and wherein the second solid-propellant comprises at least one of ammonium perchlorate and hydroxyl terminated polybutadiene (HTPB) binders. 3. The method of claim 1 , wherein the first cavity of the first cartridge assembly includes a propellant cavity of the first cartridge assembly that is also a pressure chamber of the first cartridge assembly. 4. The method of claim 1 , wherein the first solid-propellant is in a first un-burned state, and the second solid-propellant is in a second un-burned state. 5. The method of claim 1 , wherein the first cavity includes a constant diameter.
Assignees
Inventors
Classifications
the pressure sources being pyrotechnical charges · CPC title
Arrangement, mounting, or driving, of auxiliaries · CPC title
characterised by starting or ignition means or arrangements (safety devices F02K9/38) · CPC title
- F02C7/272Primary
generated by cartridges · CPC title
Pyrotechnical actuators · CPC title
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Frequently asked questions
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- What does patent US11512645B2 cover?
- A solid-propellant gas generator assembly may comprise a bulkhead having an orifice disposed in a housing. The bulkhead may be disposed between a first end and a second end of the housing. The bulkhead and the first end may define a propellant cavity. The bulkhead and the second end may define a pressure chamber. A fast burning solid-propellant may be disposed in the propellant cavity. The soli…
- Who is the assignee on this patent?
- Goodrich Corp
- What technology area does this patent fall under?
- Primary CPC classification F02C7/272. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Nov 29 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).